Submission #1093088

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1093088	2024-09-25 20:22:52	vladilius	Meetings 2 (JOI21_meetings2)	C++17	100 / 100	530 ms	40272 KiB

meetings2

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
 
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n; cin>>n;
    vector<int> g[n + 1];
    for (int i = 1; i < n; i++){
        int x, y; cin>>x>>y;
        g[x].pb(y);
        g[y].pb(x);
    }
    
    vector<bool> used(n + 1);
    vector<int> sz(n + 1), d(n + 1);
    function<void(int, int)> fill_sz = [&](int v, int pr){
        sz[v] = 1;
        for (int i: g[v]){
            if (i == pr || used[i]) continue;
            d[i] = d[v] + 1;
            fill_sz(i, v);
            sz[v] += sz[i];
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 16 / 16
• Subtask 3: 80 / 80